Figure 4

(a) Mean energy expenditure in both groups on acute stimulation days and after chronic stimulation. No significant effect was detected in overall energy expenditure either during acute stimulation (ns no significance; p = 0.09) or after chronic stimulation (p = 0.31). (b) Cumulative locomotor activity during acute stimulation and after chronic stimulation in both groups. Stimulation produced no significant effect either during acute stimulation (ns no significance; p = 0.21) or after the chronic stimulation phase (p = 0.40).